/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

package saludar;

import java.io.IOException;
import java.io.PrintWriter;
import static java.lang.System.out;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author lancaster
 */
@WebServlet(name = "SaludarServlet", urlPatterns = {"/SaludarServlet"})
public class SaludarServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
       
            //despues de, la agregue! para sesiones!
            HttpSession session = request.getSession();
            
            /*Asignamos valores a la vista jsp, mediante el contexto request*/
            request.setAttribute("saludo","Hola, soy Lancaster y quien eres tú?");
            request.setAttribute("titulo","Servlet SaludarServlet");
            
            /*El servlet selecciona la vista saludar.jsp y reenvia los atributos
            dentro de la peticion HTTP*/
            getServletContext().getRequestDispatcher("/saludar.jsp").forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
